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Effect of orthokeratology on peripheral aberrations of the eye

Mathur, Ankit & Atchison, David (2009) Effect of orthokeratology on peripheral aberrations of the eye. Optometry and Vision Science, 86(5), pp. 476-484.

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Abstract

Purpose: To investigate the effect of orthokeratology on peripheral aberrations in two myopic volunteers.

Methods: The subjects wore reverse geometry orthokeratology lenses overnight and were monitored for 2 weeks of wear. They underwent corneal topography, peripheral refraction (out to ±34° along the horizontal visual field) and peripheral aberration measurements across the 42° × 32° central visual field using a modified Hartmann-Shack aberrometer.

Results: Spherical equivalent refraction was corrected for the central 25° of the visual fields beyond which it gradually returned to its preorthokeratology values. There were increases in axial coma, spherical aberration, higher order root mean square aberrations, and total root-mean-squared aberrations (excluding defocus). The rates of change of vertical and horizontal coma across the field changed in sign. Total root mean square aberrations showed a quadratic rate of change across the visual field which was greater subsequent to orthokeratology.

Conclusion: Although orthokeratology can correct peripheral relative hypermetropia it induces dramatic increases in higher-order aberrations across the field

Impact and interest:

23 citations in Scopus
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19 citations in Web of Science®

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193 since deposited on 11 Jan 2010
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ID Code: 29559
Item Type: Journal Article
Keywords: Aberrations, Coma, Corneal refractive surgery, corneal topography, myopia, orthokeratology, Peripheral aberrations, Peripheral Ocular aberrations, Peripheral refraction
DOI: 10.1097/OPX.0b013e31819fa5aa
ISSN: 1040-5488
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Ophthalmology (111301)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Vision Science (111303)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Optometry & Vision Science
Copyright Owner: Copyright 2009 American Academy of Optometry.
Copyright Statement: Copyright American Academy of Optometry. Unauthorised reproduction of this article is prohibited.
Deposited On: 11 Jan 2010 10:33
Last Modified: 01 Mar 2012 00:08

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